
Learn Math
Arithmetic
Open Lexicon and create a new document. Enter "Math (Arithmetic)" as the topic you want to study. You will start with a new blank document. Add items by clicking the add item button () under the words table. Then, just enter an expression in the column "Expression" and its value in the "Value" column. Keep pressing the add button and entering the expressions you want to learn.
Calculus
Open Lexicon and create a new document. Enter "Calculus" as the topic you want to study. You will start with a new blank document. Add items by clicking the add item button () under the words table. Enter a function in the "Function" column (like x^3) and then enter its derivative in the "Derivative" column (3x^2). Keep pressing the add button and entering the functions you want to learn.